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MS. MARISSA WEYER MITCHEL M.S., CCC-SLP
NPI 1225467566
Speech-Language Pathologist in Lewisburg, PA

Active since November 07, 2013
120 HAMM DR, SUITE 2A, LEWISBURG, PA 17837(570) 522-9420(570) 522-9431 Get Directions Write a Review

NPPES record last updated: November 7, 2013. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Ms. Marissa Weyer Mitchel M.s., Ccc-slp NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MS. MARISSA WEYER MITCHEL M.S., CCC-SLP (NPI 1225467566) is an individual speech-language pathologist provider in Lewisburg, Pennsylvania, licensed in Pennsylvania (SL009822) and active in the NPI registry since November 2013. She is a graduate of Other (2009).

NPPES Registry Identity

NPI1225467566
Entity TypeIndividualFemale
Primary Taxonomy235Z00000X
Provider Legal NameMS. MARISSA WEYER MITCHELCredential: M.S., CCC-SLP
Location Address120 HAMM DR, SUITE 2ALewisburg, PA 17837-7496
Mailing Address120 Hamm Dr, Suite 2aLewisburg, PA 17837-7496 · (570) 522-9420 · Fax (570) 522-9431
Phone(570) 522-9420
Fax(570) 522-9431
Sole ProprietorNo
Medical School CMSOtherGraduated 2009
Enumeration DateNovember 7, 2013
✔ NPI 1225467566 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySpeech-Language PathologistSpeech, Language and Hearing Service Providers
Taxonomy Code235Z00000X
License✔ Licensed in PA · SL009822
Definition
The speech-language pathologist is the professional who engages in clinical services, prevention, advocacy, education, administration, and research in the areas of communication and swallowing across the life span from infancy through geriatrics. Speech-language pathologists address typical and atypical impairments and disorders related to communication and swallowing in the areas of speech sound production, resonance, voice, fluency, language (comprehension and expression), cognition, and feeding and swallowing.
120 HAMM DR, Lewisburg, PA 17837
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ms. Marissa Weyer Mitchel M.s., Ccc-slp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID6800353004
PECOS Enrollment IDI20260807000735

Medicare Billing Reassignment

Medicare enrollment records show Marissa Mitchel reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Geisinger Clinic
0.5 mi
Pediatrics
55 MEDICAL DRIVE
Lewisburg, PA 17837
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 4,429 clinicians in this Medicare group
NPI 1861048803 (570) 523-3264

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Other Providers at the Same Location NPPES 9

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

TRISTAN ASSOCIATES
Radiology (Diagnostic Radiology)
120 HAMM DR
LEWISBURG, PA 17837
Union County (570) 522-9300
MEGAN ZIEBER MS, MPH
Genetic Counselor, MS
120 HAMM DR
LEWISBURG, PA 17837
Union County (570) 714-6429
DONNA MARIE WELSH LPC
Counselor (Professional)
120 HAMM DR
LEWISBURG, PA 17837
Union County (570) 522-9430
RACHEL HESSERT M.ED.
Psychologist
120 HAMM DR
LEWISBURG, PA 17837
Union County (570) 271-6211
ABIGAIL PORTZLINE PA-C
Physician Assistant
120 HAMM DR
LEWISBURG, PA 17837
Union County (570) 522-9430
GEISINGER MEDICAL CENTER
Clinic/Center
120 HAMM DR
LEWISBURG, PA 17837
Union County (570) 271-5555
KRISTEN LEIGH DOUGLASS PA-C
Physician Assistant
120 HAMM DR
LEWISBURG, PA 17837
Union County (570) 522-9430
KAREN WAIN MS, CGC
Genetic Counselor, MS
120 HAMM DR
LEWISBURG, PA 17837
Union County (570) 522-9432

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Marissa Mitchel's NPI number?

The NPI number for Marissa Mitchel is 1225467566. It was assigned to this individual provider in the NPPES registry on November 7, 2013.

Where is Marissa Mitchel located?

Marissa Mitchel practices at 120 Hamm Dr Suite 2A, Lewisburg, PA 17837. The listed phone number is (570) 522-9420.

What is Marissa Mitchel's specialty?

The primary specialty registered for this NPI is Speech-Language Pathologist with taxonomy code 235Z00000X.

Is Marissa Mitchel enrolled in Medicare?

Yes. Marissa Mitchel is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Marissa Mitchel's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Marissa Mitchel reassigns Medicare benefits to Geisinger Clinic (Lewisburg, PA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Marissa Mitchel's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Marissa Mitchel was last updated on November 7, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.